更多"The probability of each of three in"的相关试题:
[单项选择]If two events are independent, the probability that they both will occur is:（）
A. 0.00.
B. 0.50.
C. Cannot be determined from the information given.
[单项选择]The article is divided into three sections. Each ______ a different aspect of the family plan.
A. deals with
B. copes with
C. handles
D. settles
[单项选择]"The three exchanges" that have been chasing each other up and down the field refer to the exchanges of______.
[单项选择]The probability of A is 0.4. The probability of AC is 0.6. The probability of (B|A) is 0.5, and the probability of ( B| AC) is 0.2. Using Bayes' formula, what is the probability of ( A|B)（）
A. 0.625.
B. 0.875.
C. 0.125.
[单项选择]A probability function:（）
A. only applies to continuous distributions.
B. specifies the probability that the random variable takes on a specific value.
C. is often referred to as the "cdf. "
[单项选择]For an unconditional probability（）
A. there are at least two events.
B. the joint probability rule is important.
C. there is only one random variable of concern.
[单项选择]Use the following probability distribution to calculate the expected return for the portfolio.（）
A. 2.5%
B. 6.6%
C. 4.3%
[单项选择]After preparing the probability distribution of cost outcome for a project, the estimate, with a 15% probability of being exceeded, is approximately one standard deviation （）.
A. below the mean
B. above the median
C. above the mean
D. above the median
[单项选择]Which of the following is NOT a probability distribution（）
A. Flip a coin: P(H)=P(T)=0.5.
B. Roll an irregular die: P(1)=P(2)=P(3)=P(4)=0.2 and P(5)=P(6)=0.1.
C. Zeta Corp. : P(dividend increases)=0.60, P(dividend decreases)=0.30.
[单项选择]If event A and event B cannot occur simultaneously, then events A and B are said to be:（）
A. collectively exhaustive.
B. statistically independent.
C. mutually exclusive.
[单项选择]There is a 30 percent probability of rain this afternoon. There is a 10 percent probability of having an umbrella if it rains. What is the chance of it raining and having an umbrella（）
A. 33%.
B. 9%.
C. 3%.
[单项选择]Three straight lines meeting at three points constitute a triangle.（）
A. center on
B. come down to
C. consist of
D. form
[单项选择]If the probability of a Type I error decreases, then the probability of:（）
A. incorrectly rejecting the null increases.
B. a Type Ⅱ error increases.
C. incorrectly accepting the null increases.
[单项选择]If the outcome of event A is not affected by event B, then events A and B are said to be:（）
A. mutually exclusive.
B. statistically independent.
C. collectively exhaustive.
[单项选择]Probability is the mathematical study of the {{U}}likelihood{{/U}} of an event’s occurrence.
A. predictability
B. fallibility
C. desirability
D. undeniability
[单项选择]Probability is the mathematical study of the ______ of an event's occurrence.
A. predictability
B. possibility
C. feasibility
D. undeniability
